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TitleBit error rate performance of OFDM in narrowband interference with excision filtering
Publication TypeJournal Article
Year of Publication2006
AuthorsCoulson, A.J.
JournalIEEE Transactions on Wireless Communications
Pagination2484 - 2492
Date Published2006
ISSN15361276 (ISSN)
KeywordsBit error rate, Carrier frequency, computer simulation, Excision filtering, Interference excision, Interference suppression, Narrowband interference, Orthogonal frequency division multiplexing, Signal interference, Wireless telecommunication systems
AbstractThe effect of narrowband interference on OFDM systems is considered, with particular regard to the receiver post-detection bit error rate performance. It is shown both by analysis and by computer simulation that the ensemble average bit error rate is severely affected by narrowband interference and that particular values of interferer carrier frequency and phase can produce bit error rates significantly higher than the ensemble average. An interference suppression technique based on excision (notch) filtering is proposed and is shown by computer simulation to improve ensemble average bit error rates to about 0.001 for BPSK modulated OFDM with signal-to-interference ratios as low as -30 dB. © 2006 IEEE.

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